摘要:
Embodiments of a feedback generator and decoder and methods of operating the feedback generator and decoder are presented. In one embodiment, the feedback generator includes a CQI compression module configured to provide a compressed CQI for the user equipment corresponding to at least one sub-band, where a sub-band is composed of at least one resource block. The feedback generator also includes a transmit module coupled to the CQI compression module and configured to transmit the compressed CQI to a serving base station. In one embodiment, the feedback decoder includes a receive module configured to receive a compressed CQI in the base station from user equipment corresponding to at least one sub-band. The feedback decoder also includes a CQI restoration module coupled to the receive module and configured to provide a restored CQI from the compressed CQI for the at least one sub-band.
摘要:
In this invention wireless communication of data between a user equipment and a base station including bandwidth aggregation of a plurality of component carriers, includes a first unit transmitting on a first component carrier a grant control signal the other unit specifying a second component carrier different to transmit the typically via a carrier indication field of 3 bits. The carrier indication field can be a one-to-one mapping to each possible second component carrier of a component carrier offset from an anchor carrier, which could be the first component carrier.
摘要:
An electronic device includes a first circuit (111) operable to generate at least a first and a second channel quality indicator (CQI) vector associated with a plurality of subbands for each of at least first and second spatial codewords respectively and generate a first and a second reference CQI for the first and second spatial codewords, and operable to generate a first and a second differential subbands CQI vector for each spatial codeword and generate a differential between the second reference CQI and the first reference CQI, and further operable to form a CQI report derived from the first and the second differential subbands CQI vector for each spatial codeword as well as the differential between the second reference CQI and the first reference CQI; and a second circuit (113) operable to initiate transmission of a signal communicating the CQI report. Other electronic devices, processes and systems are also disclosed.
摘要:
This invention is codebook sub-sampling of the reporting of RI, CQI, W1 and W2. If CSI mode 1 is selected RI and W1 are jointly encoded using codebook sub-sampling in report 1. If CSI mode 2 is selected W1 and W2 are jointly encoded using codebook sub-sampling in report 2.
摘要:
A method for setting a periodicity and an offset in rank indicator (RI) reporting in a user equipment in a wireless communication system receives a radio resource control (RRC) signal from a base station, decodes a RI periodicity and offset configuration index, sets the periodicity and offset in accordance with said decoded periodicity and offset configuration index and reports a RI according to the set periodicity and offset. The periodicity is an integer and reporting a RI reports with equal the product of the periodicity and a period of reporting of the channel quality indicator (CQI) and the precoding matrix indicator (PMI).
摘要:
This invention is method of implicit channel state information (CSI) feedback for multiuser multiple input, multiple output (MU-MIMO) communication between a base station (eNB) and a plurality of user equipment (UE). Each user equipment reporting a plurality of single user precoding matrix indicators (PMI) including a first PMI indicating a recommended optimum precoding matrix and at least one further PMI indicating information for beamforming at said base station. The base station communicates with each user equipment based on precoding matrix indicators received from the plurality of user equipment.
摘要:
This invention is a method of mapping data in a wireless communication system. The method includes forming a first frame having plural positions at a first transmitter. The first frame has a first plurality of reference signals. A second frame having plural positions corresponding to the plural positions of the first frame is formed at a second transmitter remote from the first transmitter. The second frame has a second plurality of reference signals. A plurality of data signals is inserted into the first frame at positions that are not occupied by either the first or second plurality of reference signals. The plurality of data signals is inserted into the second frame at positions that are not occupied by either the first or second plurality of reference signals. The first and second frames are transmitted to a remote receiver.
摘要:
A method of mapping data in a wireless communication system is disclosed. The method includes forming a first frame (504) having plural positions at a first transmitter (eNB 1, 200). The first frame has a first plurality of reference signals (500). A second frame (508) has plural positions corresponding to the plural positions of the first frame and is formed at a second transmitter (eNB 2, 450) that is remote from the first transmitter. The second frame has a second plurality of reference signals (506). A plurality of data signals (S1, S2) is inserted into the first frame at positions that are not occupied by either the first or second plurality of reference signals. The plurality of data signals (S1, S2) is inserted into the second frame at positions that are not occupied by either the first or second plurality of reference signals. The first and second frames are transmitted to a remote receiver (UE 1, 106).
摘要:
A network transmitter and receiver are for use with a network MIMO super cell. The network transmitter includes a rank control unit configured to provide a rank indication for a dedicated beamforming transmission from the network MIMO super cell, wherein the rank indication corresponds to spatial multiplexing of multiple data streams for the dedicated beamforming transmission. The network transmitter also includes a transmission unit configured to signal the rank indication. The network receiver includes a reception unit configured to receive a dedicated beamforming transmission within the network MIMO super cell. The network receiver also includes a rank processing unit configured to process a rank indication for the dedicated beamforming transmission corresponding to spatial multiplexing of multiple data streams for the dedicated beamforming transmission.
摘要:
A mode-switching network transmitter is for use with a network MIMO super cell and includes a super cell control unit configured to orchestrate a transmission from the network MIMO super cell, wherein the transmission is supplied from a portion of super cell transmission points. The mode-switching network transmitter also includes a transmission unit configured to provide the transmission. Additionally, a transmission mode-switching receiver is for use with user equipment in a network MIMO super cell and includes a reception unit configured to receive a transmission for the user equipment within the network MIMO super cell. The transmission mode-switching receiver also includes a processing unit configured to process the transmission, wherein the transmission is supplied from a portion of super cell transmission points.